Thipa e entsoe ka thepa ea tungsten carbide, empa lisebelisoa tse ling li teng. Tse kang HSS, 9CrSi, Cr12Mo, VW6Mo5, Cr4V2, hard alloy, joalo-joalo. Thepa e tala e tšoaroa ka mocheso, vacuum e tšoaroa, 'me boima bo phahame. Phekolo ea mocheso fekthering ea hau ho netefatsa botsitso ba sehlahisoa. Thepa ea thipa e bohale, e boreleli, e bohale ebile e tšoarella, thepa ea ho sebetsa ka mokhoa o nepahetseng e tsoang linaheng tse ling e ka sebetsana le mefuta e sa tšoaneng ea lihlahisoa tse sa tloaelehang ho netefatsa ho nepahala ha lihlahisoa.